Unit 5
The Nervous System
Start
Index
5.9 project
5.5 Quiz
5.1 Nervous s
5.6 Disorders
5.2 Brain
5.7 careers
5.3 Peri NS
5.8 live class
5.4 Live Class
Section I
5.1 Structure and Function
- identify the major structures of the nervous system
- relate the structure of the nervous system to its functions
Vocabulary
autonomic nervous system, axon, brain, central nervous system, dendrite, myelin, nerve, neuron, peripheral nervous system, spinal cord, voluntary nervous system
What type of tissue is found in the brain and spinal cord?
A - boneB - nervous C - cartilage D - muscle
Stretch Reflex
Schwann Cell & Myelin Sheath
A schwann cell envelops and rotates around the axon forming myelin sheath, now axon is myelinated.
Reflex Arc
Section II
5.2 The Brain
- identify the major structures of the brain
- explain how the brain functions as the body's control center
Vocabulary
brain stem, cerebellum, cerebral cortex, cerebrum, diencephalon, gyri, hypothalamus, lobes, medulla oblongata, meninges, pons, sulci, thalamus
Which of the following organs belong to the CNS?
Select all that apply.
A - sensory receptorsB - nerves of the arm C - spinal cord D - brain
Structure and Function
Cerebrum
Diencephalon
Cerebellum
Brain Stem
CNS Overview Video
03 Spinal Cord
01 Brain Protective Layers
02 Brain Parts
Read more
Read more
Read more
Blood Brain Barrier
Alcohol and the Teenage Brain
Section III
5.3 Peripheral Nervous System
- describe the role of the spinal column in the nervous system
- relate the structure of nerves to their function
- describe the basic physiology of a reflex arc
Quote
effector, endoneurium, epineurium, nerve, perineurium, proprioceptor, receptor, reflex
Neuron Label
1. C B2. D 3. M S 4. A T 5. A 6. N
Video
Peripheral Nervous System
- Somatic Division - skeletal muscles & voluntary movement
- Autonomic Division - internal organs & involuntary processes
* Sympathetic - fight or flight* Parasympathetic - rest & digest
Video
Spinal Cord
12 pairs of cranial nerves run directly from the brain to areas of the head, neck, and face. The remaining 31 pairs of spinal nerves branch off from the spinal cord. The names of the nerves correspond with the names of the associated vertebrae:
Cervical nerves: C1–C8
Thoracic nerves: T1–T12
Lumbar nerves: L1–L5
Sacral nerves: S1–S4
Read more
Gallery
03 Nerves
02 Spinal Cord Cross Section
04 Reflex Arc
01 Spinal Cord
Sensory Receptors
Sensory nerves are sensory receptors that receive information about the environment and send that information to the CNS via the sensory neurons. Your skin contains cutaneous sensory receptors that gather information about pain, temperature, touch, and pressure. Skeletal muscles and tendons contain proprioreceptors that detect tension in the muscles, tendons, and joints.
Read more
Reflex Arc
A reflex is a rapid, predictable, and involuntary response to a stimulus. A reflex is a preprogrammed response to a particular stimulus that occurs over a neural pathway called a reflex arc
5. Effector Organ
1. Stimulus
3. Integration Center
2. Sensory input to spinal cord
4. Impulse to motor neurons
Read more
LIVE CLASS
Live Class: 1/6
Nervous System
Video
Autonomic Nervous System
This video explains how your sympathetic nervous system and parasympathetic nervous system work together and balance each other out. Their key anatomical differences - where nerve fibers originate and where their ganglia are located - drive their distinct anatomical functions, making your sympathetic nervous system the "fight or flight" while your parasympathetic nervous system is for "resting and digesting." **Don't forget to answer the Exit TIcket questions**
Unit 5 - Nervous System
HS: High School
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Transcript
Unit 5
The Nervous System
Start
Index
5.9 project
5.5 Quiz
5.1 Nervous s
5.6 Disorders
5.2 Brain
5.7 careers
5.3 Peri NS
5.8 live class
5.4 Live Class
Section I
5.1 Structure and Function
Vocabulary
autonomic nervous system, axon, brain, central nervous system, dendrite, myelin, nerve, neuron, peripheral nervous system, spinal cord, voluntary nervous system
What type of tissue is found in the brain and spinal cord?
A - boneB - nervous C - cartilage D - muscle
Stretch Reflex
Schwann Cell & Myelin Sheath
A schwann cell envelops and rotates around the axon forming myelin sheath, now axon is myelinated.
Reflex Arc
Section II
5.2 The Brain
Vocabulary
brain stem, cerebellum, cerebral cortex, cerebrum, diencephalon, gyri, hypothalamus, lobes, medulla oblongata, meninges, pons, sulci, thalamus
Which of the following organs belong to the CNS? Select all that apply.
A - sensory receptorsB - nerves of the arm C - spinal cord D - brain
Structure and Function
Cerebrum
Diencephalon
Cerebellum
Brain Stem
CNS Overview Video
03 Spinal Cord
01 Brain Protective Layers
02 Brain Parts
Read more
Read more
Read more
Blood Brain Barrier
Alcohol and the Teenage Brain
Section III
5.3 Peripheral Nervous System
Quote
effector, endoneurium, epineurium, nerve, perineurium, proprioceptor, receptor, reflex
Neuron Label
1. C B2. D 3. M S 4. A T 5. A 6. N
Video
Peripheral Nervous System
- Somatic Division - skeletal muscles & voluntary movement
- Autonomic Division - internal organs & involuntary processes
* Sympathetic - fight or flight* Parasympathetic - rest & digestVideo
Spinal Cord
12 pairs of cranial nerves run directly from the brain to areas of the head, neck, and face. The remaining 31 pairs of spinal nerves branch off from the spinal cord. The names of the nerves correspond with the names of the associated vertebrae: Cervical nerves: C1–C8 Thoracic nerves: T1–T12 Lumbar nerves: L1–L5 Sacral nerves: S1–S4
Read more
Gallery
03 Nerves
02 Spinal Cord Cross Section
04 Reflex Arc
01 Spinal Cord
Sensory Receptors
Sensory nerves are sensory receptors that receive information about the environment and send that information to the CNS via the sensory neurons. Your skin contains cutaneous sensory receptors that gather information about pain, temperature, touch, and pressure. Skeletal muscles and tendons contain proprioreceptors that detect tension in the muscles, tendons, and joints.
Read more
Reflex Arc
A reflex is a rapid, predictable, and involuntary response to a stimulus. A reflex is a preprogrammed response to a particular stimulus that occurs over a neural pathway called a reflex arc
5. Effector Organ
1. Stimulus
3. Integration Center
2. Sensory input to spinal cord
4. Impulse to motor neurons
Read more
LIVE CLASS
Live Class: 1/6
Nervous System
Video
Autonomic Nervous System
This video explains how your sympathetic nervous system and parasympathetic nervous system work together and balance each other out. Their key anatomical differences - where nerve fibers originate and where their ganglia are located - drive their distinct anatomical functions, making your sympathetic nervous system the "fight or flight" while your parasympathetic nervous system is for "resting and digesting." **Don't forget to answer the Exit TIcket questions**